JP4762759B2 - Impulse voltage generating circuit, ion generating device, and electrical equipment - Google Patents

Description

  The present invention relates to an impulse voltage generation circuit that generates an impulse voltage to be applied to an ion generation element of an ion generation device that generates positive ions and negative ions by a discharge phenomenon, and an ion generation device and an electric apparatus including the impulse voltage generation circuit. is there.

  There are two methods for generating positive and negative polarity ions: a method in which an alternating high voltage is applied to one ion generating element, and a method in which a high voltage with positive and negative polarities is applied to at least two ion generating elements.

  As a method of applying an alternating high voltage to the former one ion generating element, there are a method of applying a high voltage of a sine wave and a method of applying a voltage of a positive and negative vibration attenuation waveform in an extremely short time.

  In the latter method of applying a high voltage with positive and negative polarities to at least two ion generating elements, a positive DC voltage (the voltage is a constant positive value and the magnitude of the current flowing through the ion generating element by applying the voltage) is used. And a negative DC voltage (the voltage is a negative constant value and the magnitude and direction of the current flowing through the ion generating element by applying the voltage are also fixed) to each of the separate ion generating elements. Typical and simplest method and impulse-like positive and negative vibration attenuation waveform voltage that is positively biased (shifted) and negatively biased (shifted) voltage are applied to separate ion generating elements. There are methods (see, for example, Patent Document 1).

  Hereinafter, ion generators that realize the above-described method will be sequentially described.

  In an ion generator that realizes a method of applying a high voltage of a sine wave to one ion generating element, the circuit configuration that boosts the commercial household power supply voltage, which is alternating current, and applies it to the ion generating element is the simplest. However, since the transformer becomes large in the circuit configuration, generally R.D. C. A circuit configuration is adopted that is miniaturized using a self-excited oscillation type switching power supply such as C (ringing choke converter). In recent years, a circuit configuration using a piezoelectric transformer has been developed in order to further reduce the size. Since the waveform of the high voltage of the sine wave is clear, illustration is omitted.

  FIG. 5 shows a typical circuit diagram of an ion generator that realizes a method of applying an impulse-like voltage of a positive and negative vibration attenuation waveform in an extremely short time to one ion generating element. The voltage applied to the ion generating element is shown in FIG. The waveform is shown in FIG. The operation of the ion generator shown in FIG. 5 will be described. The AC voltage output from the commercial household power supply 101 is half-wave rectified by the rectifier diode 103 via the resistor 102 and charged to the capacitor 104. When the charging voltage of the capacitor 104 reaches a specified value or more, the switching element 105 is turned on, the electric charge accumulated in the capacitor 104 is discharged to the primary winding 107a of the transformer, and a current (primary current) is supplied to the primary winding 107a of the transformer. Flowing. The transformer primary winding 107 a is composed of an inductance, a transformer primary winding 107 a resistance component (not shown), a switching element 105 resistance component (not shown), and a capacitor 104 capacitance. The resonance circuit resonates until there is no charge accumulated in the capacitor 104, and the primary current is damped and stopped according to the resonance. The diode 106 serves as a flywheel diode that quickly stops the primary current. On the other hand, on the secondary side of the transformer, the inductance of the secondary winding 107b of the transformer, the resistance component (not shown) of the secondary winding 107b of the transformer, the ion generating element 108, and the secondary winding 107b of the transformer The resonance circuit composed of the resistance component (not shown) of the line connecting the two and the electrostatic capacitance of the ion generating element 108 resonates until there is no energy transmitted to the secondary winding 107b of the transformer. 6 is applied to both ends of the ion generating element 108. Thereafter, the capacitor 104 is charged again and the same operation is repeated. As an example, the positive / negative vibration attenuation waveform of the voltage applied to the ion generating element 108 is as shown in FIG. 6B, and the vibration attenuation time is from several tens μs to several hundreds μs. The range of the AC voltage output from (16.7 ms at 60 Hz, 20 ms at 50 Hz) is an extremely short width that can be said to be an impulse as shown in FIG. FIG. 6B is an enlarged view of a portion surrounded by a dotted ellipse in FIG.

  In an ion generator that realizes a method in which a positive DC voltage and a negative DC voltage are applied to separate ion generating elements, a commercial household power supply voltage that is alternating current is boosted, and the boosted voltage is rectified and smoothed. By doing so, the circuit configuration for obtaining a positive DC voltage and a negative DC voltage is the simplest.

  Typical circuit diagram of an ion generator that realizes a system in which a positively biased voltage and a negatively biased voltage are applied to separate ion generating elements in an impulse-like extremely short time positive and negative vibration attenuation waveform. 7 shows the waveform of the voltage output from the secondary winding of the transformer and the voltage applied to the ion generating element. In FIG. 7, the same parts as those in FIG. In the ion generator shown in FIG. 7, the secondary winding of one transformer is provided so that two secondary windings of the transformer are provided, and the connecting directions of the transformer to the secondary winding are opposite to each other in the diode 110 and the diode 111. The ion generating element 108 and the diode 110 are connected to the winding 107b, and the ion generating element 109 and the diode 111 are connected to the secondary winding 107c of the other transformer. Impulse generators 108 and 109 are impressed with positive and negative vibration attenuation waveforms in an extremely short time in different directions. As an example, the secondary winding 107b of the transformer outputs an impulse-like voltage with a positive and negative vibration attenuation waveform in an extremely short time preceded by a positive voltage as shown in FIG. 8B outputs a voltage having a positive and negative vibration attenuation waveform in an extremely short time, which is preceded by a negative voltage as shown in FIG. At this time, since the ground potential of the ion generating element 108 is positively biased by the diode 110 and the ground potential of the ion generating element 109 is negatively biased by the diode 111, the waveform of the voltage applied to both ends of the ion generating element 108 8C, positive ions are generated from the ion generating element 108, and the waveform of the voltage applied to both ends of the ion generating element 109 is as shown in FIG. Negative ions are generated.

Further, even if the transformer secondary side output is made one without providing two transformer secondary windings, the connection direction with respect to the transformer secondary side output is as shown in FIG. The ion generating element 108 and the diode 110 are connected to the secondary output of the piezoelectric transformer 116 via the capacitor 112 so as to be opposite to each other, and the ion generating element 109 and the diode are connected to the transformer secondary output via the capacitor 113. If the circuit configuration is such that 111 is connected, positively and negatively biased voltages are applied to the ion generating elements 108 and 109, respectively. The piezoelectric transformer 116 is driven by the oscillation of the oscillation circuit 115 that receives a DC voltage from the DC power supply 114. The waveform of the voltage applied to the ion generating element 108 is a waveform obtained by positively biasing a sine wave as shown in FIG. 10A, and the waveform of the voltage applied to the ion generating element 109 is shown in FIG. As shown, the waveform is a negatively biased sine wave. A high voltage generator related to the ion generator shown in FIG. 9, that is, a high voltage generator using a piezoelectric transformer is disclosed in Patent Document 2.
JP 2004-363088 A JP-A-11-251035

  In the former method of applying an alternating high voltage to one ion generating element, an ion generating device can be constituted by one ion generating element and one high voltage generating circuit. In other words, there is a high probability that positive and negative ions will neutralize each other, and the generation efficiency of ions is low. On the other hand, the latter method of applying a high voltage of positive and negative polarity to at least two ion generating elements generates positive ions and negative ions separately from different ion generating elements, so positive and negative ions are mutually neutral. It can be suppressed from disappearing.

  However, in the latter method of applying a high voltage with positive and negative polarities to at least two ion generating elements, a method of applying the positive DC voltage and the negative DC voltage to separate ion generating elements, respectively, or an impulse type In the method of applying a positively biased voltage and a negatively biased voltage to the separate ion generating elements, respectively, in a very short time, the voltage of the positive / negative vibration damping waveform is divided into at least two ion generating elements and at least two secondary windings. Therefore, there is a problem that the circuit board is increased in size. On the other hand, as shown in FIG. 9, the secondary output of the piezoelectric transformer 116 is ionized via the capacitor 112 so that the connection direction to the transformer secondary output is opposite to each other between the diode 110 and the diode 111. If the circuit configuration is such that the generating element 108 and the diode 110 are connected, and the ion generating element 109 and the diode 111 are connected to the transformer secondary side output via the capacitor 113, the circuit board can be reduced in size.

  Moreover, in the ion generator using the discharge phenomenon, ozone is generated at the same time as the generation of ions, and since ozone generally affects the human body when the concentration becomes high, an environmental standard (a level that is not harmful) is provided. . In the case where the circuit configuration shown in FIG. 9 and the method of applying an alternating high voltage to the former one of the ion generating elements are employed, a method of applying an impulse-like voltage of positive and negative vibration attenuation waveform in an extremely short time to the ion generating element. Compared with, the amount of generated ozone increases, and at that point, a method of applying an impulse-like voltage of a positive / negative vibration attenuation waveform in an extremely short time to the ion generating element is advantageous.

  In view of the above, an ion generator having a circuit configuration as shown in FIG. 11 is used as an ion generator that has high ion generation efficiency, can be miniaturized, and can reduce ozone generation. Conceivable. In FIG. 11, the same parts as those in FIG.

  The ion generator shown in FIG. 11 has a single secondary winding of the transformer, and the secondary winding of the transformer is such that the connection direction of the transformer to the secondary winding 107b is opposite to each other in the diode 110 and the diode 111. In this circuit configuration, the ion generating element 108 is connected to the line 107b via the diode 110, and the ion generating element 109 is connected to the secondary winding 107b of the transformer via the diode 111. With such a circuit configuration, a voltage obtained by rectifying and attenuating the voltage of an impulse-like positive and negative vibration attenuation waveform in an extremely short time in the positive direction is supplied to the ion generating element 108 as an impulse-like positive and negative vibration attenuation waveform in an extremely short time. Can be applied to the ion generating element 109 respectively.

  However, in the ion generator shown in FIG. 11, the waveform of the voltage generated in the secondary winding 107b of the transformer is an impulse-like positive / negative vibration attenuation waveform in an extremely short time as shown in FIG. Basically, the peak value (absolute value) of the first wave of the waveform is different from the peak value (absolute value) of the second wave. For this reason, the peak value of the voltage applied to the ion generating element 108 is a voltage obtained by rectifying and attenuating the voltage of the positive and negative vibration attenuation waveform of an impulse as shown in FIG. (Absolute value) is a voltage obtained by rectifying and attenuating the voltage of an impulse-like positive and negative vibration attenuation waveform in a short time as shown in FIG. A magnitude relationship arises with the peak value (absolute value). The waveform of the voltage applied to the ion generating element 108 is as shown in FIG. 12B, and the waveform of the voltage applied to the ion generating element 109 is as shown in FIG. Since the difference between the peak values (absolute values) of the voltages applied to the ion generating elements 108 and 109 is reflected in the ion balance of the positive and negative ions generated, the ion generator shown in FIG. There was a problem that the result of the failure would occur.

  In view of the above-described problems, the present invention is to realize an ion generator that has good ion generation efficiency, can be downsized, can reduce ozone generation, and has a good positive / negative ion balance. It is an object of the present invention to provide an impulse voltage generation circuit, an ion generation apparatus and an electric apparatus including the same.

  In order to achieve the above object, an impulse voltage generation circuit according to the present invention has a transformer of one output, and an impulse voltage having a positive / negative damped oscillation waveform is applied to the secondary winding of the transformer on the primary side of the transformer. A circuit for generating the at least one rectifying element for positive rectification that rectifies the impulse voltage of the positive / negative damped oscillation waveform in the positive direction on the secondary side of the transformer, and the impulse shape of the positive / negative damped oscillation waveform An absolute value of the peak value of the voltage obtained by rectifying the impulse voltage of the positive / negative attenuation vibration waveform in the positive direction and the positive / negative attenuation The magnitude relationship with the absolute value of the peak value of the voltage obtained by rectifying the impulse-like voltage of the vibration waveform in the negative direction is switched at regular intervals.

  It is obtained by connecting the ion generating element for generating positive ions and the ion generating element for generating negative ions to the impulse voltage generating circuit having such a configuration, and rectifying the impulse voltage of the positive / negative damped oscillation waveform in the positive direction. A voltage is applied to the positive ion generating ion generating element, and a voltage obtained by rectifying the impulse voltage of the positive / negative damped oscillation waveform in the negative direction is applied to the negative ion generating ion generating element. By doing so, the following effects can be obtained.

  If time-averaged, it is obtained by rectifying the absolute value of the peak value of the voltage obtained by rectifying the impulse voltage of the positive / negative damped oscillation waveform in the positive direction and the impulse voltage of the positive / negative damped oscillation waveform in the negative direction. The absolute value of the peak value of the measured voltage can be made the same. Thereby, ion balance can be improved. In addition, since a high voltage of positive and negative polarities is applied to each of the ion generating element for positive ion generation and the ion generating element for negative ion generation, neutralization of ions is suppressed and ion generation efficiency is good. In addition, since an impulse voltage is applied to the ion generating element, the amount of ozone generation is reduced as compared with the case where a sine wave voltage is applied to the ion generating element. Furthermore, since the transformer has one output, it can be realized with a simplified circuit configuration. Thereby, size reduction can be achieved.

  As one specific measure, in the impulse voltage generation circuit having the above-described configuration, the current direction at the beginning of the flow of the impulse current flowing in the primary winding of the transformer may be switched at every predetermined period.

  In order to achieve the above object, an ion generator according to the present invention includes an impulse voltage generation circuit having each configuration described above and a positive / negative damping vibration waveform generated in a secondary winding of a transformer included in the impulse voltage generation circuit. Positive and negative attenuation generated in at least one ion generating element for generating positive ions to which a voltage obtained by rectifying the impulse voltage in the positive direction is applied, and the transformer secondary winding included in the impulse voltage generation circuit At least one ion generating element for generating negative ions to which a voltage obtained by rectifying an impulse-like voltage having a vibration waveform in the negative direction is applied. Then, positive ions and negative ions are generated in the ion generator according to the present invention.

  In order to achieve the above object, an electrical apparatus according to the present invention includes the ion generator having the above-described configuration and a sending means for sending ions generated by the ion generator into the air.

  According to the present invention, the ion generation efficiency in the ion generator can be improved, the pulse voltage generation circuit, the ion generator, and the electrical equipment can be downsized, and ozone is generated in the ion generator. And the positive / negative ion balance in the ion generator can be improved.

  Embodiments of the present invention will be described below with reference to the drawings. An example of the configuration of an ion generator according to the present invention is shown in FIG. The ion generator shown in FIG. 1 includes an impulse voltage generation circuit 10 and ion generation elements 6 and 7. The impulse voltage generation circuit 10 includes a resistor 2, a capacitor 3, a switching element 4, a high voltage transformer having a primary winding 5a and a secondary winding 5b, and rectifier diodes 8 and 9.

  The primary circuit of the ion generator shown in FIG. 1 includes a resistor 2, a capacitor 3, a switching element 4, and a primary winding 5a of a high-voltage transformer, and includes one end of the resistor 2, the capacitor 3 and the high-voltage transformer. The AC voltage output from the commercial household power supply 1 is applied between two points with the connection point of the primary winding 5a. As the switching element 4 provided between the connection point of the resistor 2 and the capacitor 3 and the primary winding 3a of the high-voltage transformer, a triac or a two-terminal thyristor that enables bidirectional conduction is used.

  On the other hand, the secondary side circuit of the ion generator shown in FIG. 1 includes a secondary winding 5b of a high-voltage transformer and two rectifier diodes having one ends connected in opposite directions to one end of the secondary winding 5b of the high-voltage transformer. 8 and 9, the other end of the rectifier diode 8 and the other end of the secondary winding 5b of the high voltage transformer, the other end of the rectifier diode 9, and the secondary winding 5b of the high voltage transformer. It is comprised by the ion generating element 7 connected to an end. Ion generating elements connected to the other end of the rectifier diode 8 and the other end of the secondary winding 5b of the high voltage transformer, and ions connected to the other end of the rectifier diode 9 and the other end of the secondary winding 5b of the high voltage transformer There may be a plurality of generation elements, but in the present embodiment, there is one. Further, the positions of the switching element 4 and the capacitor 3 may be interchanged. The positions of the primary winding 5a of the transformer and the switching element 4 may be interchanged.

  Next, the operation of the ion generator shown in FIG. 1 will be described.

  First, the operation (first operation) when the resistance 2 side voltage of the commercial household power source 1 is higher than the connection point side voltage of the capacitor 3 and the primary winding 5a of the commercial household power source 1 will be described. When the resistance 2 side voltage of the commercial household power source 1 is higher than the connection point side voltage of the capacitor 3 and the primary winding 5a of the commercial household power source 1, the output voltage of the commercial household power source 1 passes through the resistor 2 and the resistance 2 The capacitor 3 is charged with the side connected to the positive electrode being positive. The charging speed of the capacitor 3 is determined by a time constant based on the product of the resistance value of the resistor 2 and the capacitance value of the capacitor 3. Further, the amount of charge charged in the capacitor 3 is determined by the capacitance of the capacitor 3.

  When the charging voltage of the capacitor 3 reaches the first specified value or more, the switching element 4 is turned on, and the charge accumulated in the capacitor 3 is discharged to the primary winding 5a of the high-voltage transformer, and a current ( Primary current) flows. The inductance of the primary winding 5 a of the high voltage transformer, the resistance component (not shown) of the primary winding 5 a of the high voltage transformer, the resistance component (not shown) of the switching element 4, and the capacitance of the capacitor 3. The primary side resonance circuit resonates until the electric charge stored in the capacitor 3 disappears, and the primary current is oscillated and attenuated. When the switching element 4 falls below a second specified value at which the switching element 4 is turned off, the switching element 4 does not conduct. .

  On the other hand, on the secondary side of the high voltage transformer, the inductance of the secondary winding 5b of the high voltage transformer, the resistance component (not shown) of the secondary winding 5b of the high voltage transformer, the high voltage transformer, the rectifier diodes 8 and 9, etc. A secondary side resonance circuit composed of a stray capacitance (not shown) and the electrostatic capacitances of the ion generating elements 6 and 7 resonates until there is no energy transmitted to the secondary winding 5b of the transformer. Even after the current disappears, a vibration attenuation voltage that vibrates while being attenuated with a waveform as shown in FIG. 2A according to the resonance of the secondary side resonance circuit is output to both ends of the secondary winding 5b of the high-voltage transformer. . The vibration attenuation time of the vibration attenuation voltage shown in FIG. 2 (a) is a length of several tens to several hundreds of μs, and the period of the alternating voltage output from the commercial household power source 1 (16.7 ms at 50 Hz, 50 Hz). If it is in the range of 20 ms), it becomes an extremely short time width that can be said to be an impulse like FIG.

  The waveform of the vibration damping voltage shown in FIG. 2A is based on the voltage waveform generated at both ends of the secondary winding 5b of the high-voltage transformer, with the rectifier diodes 8 and 9 not connected. 9 is a waveform in which the direction of connection is seen, where the first peak is negative and the second peak is positive. When the vibration attenuation voltage shown in FIG. 2A is negative, the rectifier diode 9 is turned on, and the voltage obtained by rectifying and attenuating the vibration attenuation voltage shown in FIG. 2A in the negative direction (FIG. 2B V-) of () is applied to the ion generating element 7. As a result, negative ions are generated from the ion generating element 7. On the other hand, when the vibration attenuation voltage shown in FIG. 2 (a) is positive, the rectifier diode 8 is turned on, and the voltage obtained by rectifying and attenuating the vibration attenuation voltage shown in FIG. 2 (a) in the positive direction (FIG. 2). (V +) of (b) is applied to the ion generating element 6. Thereby, positive ions are generated from the ion generating element 6. Usually, the absolute value of the first peak is different from the absolute value of the second peak, and the two values are close to each other by the combination of the inductance value of the secondary winding 5b of the high-voltage transformer and the capacitance values of the ion generating elements 6 and 7. Is possible, but it is very difficult to do exactly the same.

  Next, an operation (second operation) when the resistance 2 side voltage of the commercial household power source 1 is lower than the connection side voltage of the capacitor 3 and the primary winding 5a of the commercial household power source 1 will be described. When the resistance 2 side voltage of the commercial household power source 1 is lower than the connection side voltage of the capacitor 3 and the primary winding 5a of the commercial household power source 1, the side connected to the resistor 2 is set to be negative, that is, the first The capacitor 3 is charged in the opposite direction to the case of the above operation. Similarly, when the charging voltage of the capacitor 3 reaches the first specified value or more, the switching element 4 is turned on, the charge accumulated in the capacitor 3 is discharged to the primary winding 5a of the high voltage transformer, and the primary current is the first operation. Flows in the opposite direction. For this reason, a vibration attenuation voltage that vibrates while being attenuated with a waveform as shown in FIG. 3A, that is, a vibration attenuation voltage having a polarity opposite to that in the first operation, is applied to the secondary winding 5b of the high-voltage transformer. Output to both ends.

  The waveform of the vibration attenuation voltage shown in FIG. 3A is based on the waveform of the voltage generated at both ends of the secondary winding 5b of the high-voltage transformer, with the rectifier diodes 8 and 9 not connected. 9 is a waveform in which the direction of connection is seen, where the first peak is positive and the second peak is negative. When the vibration attenuation voltage shown in FIG. 3A is positive, the rectifier diode 8 is turned on, and the voltage obtained by rectifying and attenuating the vibration attenuation voltage shown in FIG. 3A in the positive direction (FIG. 3B ) V +) is applied to the ion generating element 6. Thereby, positive ions are generated from the ion generating element 6. On the other hand, when the vibration attenuation voltage shown in FIG. 3A is negative, the rectifier diode 9 is turned on, and the voltage obtained by rectifying and attenuating the vibration attenuation voltage shown in FIG. 3A in the negative direction (FIG. 3). V-) of (b) is applied to the ion generating element 7. As a result, negative ions are generated from the ion generating element 7. As in the case of the first operation, in the case of the second operation, the absolute value of the first peak is usually different from the absolute value of the second peak, and the inductance of the secondary winding 5b of the high-voltage transformer is different. Although it is possible to make both values close by combining the values and the electrostatic capacitance values of the ion generating elements 6 and 7, it is very difficult to make them exactly the same.

  Each of the first operation and the second operation is performed once or a plurality of times in a half cycle of the AC voltage output from the commercial household power supply 1, and is switched every half cycle. The peak value (absolute value) of the voltage applied to the ion generating element 6 that generates positive ions and the peak value (absolute value) of the voltage applied to the ion generating element 7 that generates negative ions may be the same. it can. Thereby, ion balance can be improved. In addition, since the ion generator shown in FIG. 1 is a system in which high voltages of positive and negative polarities are applied to the two ion generating elements, it is possible to suppress neutralization of ions of both positive and negative polarities. Is good. In addition, the ion generator shown in FIG. 1 is a system in which a positively biased voltage and a negatively biased voltage of an impulse-like extremely short time positive and negative vibration attenuation waveform are applied to separate ion generating elements, respectively. Therefore, the amount of ozone generated is smaller than that of an ion generator that applies a sine wave voltage to the ion generating element. Further, the ion generator shown in FIG. 1 has a single high-voltage transformer and can be realized with a simplified circuit configuration, and thus can be miniaturized.

  Another configuration example of the ion generator according to the present invention is shown in FIG. 4 that are the same as those in FIG. 1 are given the same reference numerals, and detailed descriptions thereof are omitted. The ion generator shown in FIG. 4 has a configuration in which one ends of the primary winding 5a and the secondary winding 5b of the high-voltage transformer are connected in common, and it is better to fix the potential of the high-voltage transformer secondary winding 5b. adopt. The operation of the ion generator shown in FIG. 4 and the effect produced by the ion generator shown in FIG. 4 are the same as those of the ion generator shown in FIG.

  Moreover, there are various modes for the ion generating elements 6 and 7, and the mode is not particularly limited in the present invention. As a general example, a metal discharge electrode having a sharp tip connected to the rectifier diode 8 or 9 and a flat electrode having a sharp tip and a side electrode not connected to the rectifier diode 8 or 9 A discharge electrode having a sharp portion on the surface of an ion generating element or dielectric substrate disposed so that the discharge electrode and the dielectric electrode face each other with a dielectric electrode and air or a dielectric substrate interposed therebetween The ion generating element of the aspect which has arrange | positioned and has embedded the said dielectric electrode in the said base material is mentioned.

  The ion generator according to the present invention described above may be mounted on an electrical device such as an air conditioner, a dehumidifier, a humidifier, an air cleaner, a refrigerator, a fan heater, a microwave oven, a washing dryer, a vacuum cleaner, or a sterilizer. . And it is good to equip such an electric equipment with the sending means (for example, ventilation fan) which sends out the ion which generate | occur | produced with the ion generator in the air. With such an electric device, in addition to the original function of the device, positive and negative ions having a good positive / negative ion balance can be released into the air by the installed ion generator and delivery means.

These are figures which show one structural example of the ion generator which concerns on this invention. These are waveform diagrams, such as a voltage applied to the ion generating element of the ion generator shown in FIG. These are waveform diagrams, such as a voltage applied to the ion generating element of the ion generator shown in FIG. These are figures which show the other structural example of the ion generator which concerns on this invention. These are the circuit block diagrams of the conventional ion generator. FIG. 6 is a waveform diagram of a voltage applied to an ion generating element of the ion generating device shown in FIG. 5. These are the circuit block diagrams of the other conventional ion generator. These are waveform diagrams, such as a voltage applied to the ion generating element of the ion generator shown in FIG. These are the circuit block diagrams of other conventional ion generators. FIG. 10 is a waveform diagram of a voltage applied to an ion generating element of the ion generating device shown in FIG. 9. These are the circuit block diagrams of the ion generator which can solve the problem which the conventional ion generator shown to FIG. These are waveform diagrams, such as a voltage applied to the ion generating element of the ion generator shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Commercial household power supply 2 Resistance 3 Capacitor 4 Switching element 5a Primary winding of a high voltage transformer 5b Secondary winding of a high voltage transformer 6, 7 Ion generating element 8, 9 Rectifier diode 10 Impulse voltage generation circuit

Claims (3)

It has one output transformer,
Provided on the primary side of the transformer is a circuit for generating an impulse voltage having a positive / negative damping vibration waveform in a secondary winding of the transformer, including a resistor, a capacitor, and a switching element ;
On the secondary side of the transformer, at least one rectifying element for positive rectification that rectifies the impulse voltage of the positive and negative damping vibration waveform in the positive direction, and at least rectifying the impulse voltage of the positive and negative attenuation vibration waveform in the negative direction. One rectifying element for negative direction rectification,
An AC voltage is applied to the primary winding of the transformer, the charging direction of the capacitor is switched every half cycle of the AC voltage, and the current direction at the beginning of the flow of the impulse current flowing through the primary winding of the transformer is the AC In addition to changing the voltage every half cycle ,
The absolute value of the peak value of the voltage obtained by rectifying the impulse voltage of the positive / negative damped oscillation waveform in the positive direction and the peak value of the voltage obtained by rectifying the impulse voltage of the positive / negative damped oscillation waveform in the negative direction The impulse voltage generation circuit characterized in that the magnitude relationship with the absolute value of is switched every half cycle of the AC voltage . The impulse voltage generation circuit according to claim 1,
At least one ion generating element for generating positive ions to which a voltage obtained by rectifying an impulse voltage having a positive / negative damping vibration waveform generated in a secondary winding of a transformer included in the impulse voltage generation circuit in a positive direction is applied. When,
At least one ion generating element for generating negative ions to which a voltage obtained by rectifying an impulse voltage having a positive / negative damped oscillation waveform generated in a secondary winding of a transformer included in the impulse voltage generation circuit in a negative direction is applied. And an ion generator.   An electrical apparatus comprising: the ion generator according to claim 2; and a sending unit that sends out ions generated by the ion generator into the air.

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